Kolbert talked about species that have gone or are near extinction; very informative, archaeoligist Marean discussed the evolution of man and how they migrated and populated the earth. He talked about the traces of Neanderthal DNA in today’s humans.

Michael Shermer who is one of my favorite intellectuals discussed ways to engage in civil debate and conversation with those of opposing views on subjects that can get pretty heated like religion.

And as always Professor Krauss was personable and gracious. He signed my copy of Beyond Star Trek. Shermer signed my copy of The Moral Arc and took a photo with me. I will post links to the video when it airs.